DE3853345D1 - Spread spectrum demodulation device for a spread spectrum transmission system. - Google Patents

Spread spectrum demodulation device for a spread spectrum transmission system.

Info

Publication number: DE3853345D1
Authority: DE; Germany
Prior art keywords: spread spectrum; transmission system; demodulation device; spectrum transmission; spectrum demodulation
Prior art date: 1987-12-09
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

DE3853345T

Other languages

German (de)

Other versions

DE3853345T2 (en

Inventor

Masashi Yoshihara

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NEC Corp

Original Assignee

NEC Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-12-09

Filing date

1988-12-08

Publication date

1995-04-20

1988-12-08 Application filed by NEC Corp filed Critical NEC Corp

1995-04-20 Application granted granted Critical

1995-04-20 Publication of DE3853345D1 publication Critical patent/DE3853345D1/en

1995-09-21 Publication of DE3853345T2 publication Critical patent/DE3853345T2/en

2008-12-09 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Synchronisation In Digital Transmission Systems (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

DE3853345T 1987-12-09 1988-12-08 Spread spectrum demodulation device for a spread spectrum transmission system. Expired - Fee Related DE3853345T2 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP62311423A JPH01151843A (en)	1987-12-09	1987-12-09	Spread spectrum demodulator

Publications (2)

Publication Number	Publication Date
DE3853345D1 true DE3853345D1 (en)	1995-04-20
DE3853345T2 DE3853345T2 (en)	1995-09-21

Family

ID=18017024

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE3853345T Expired - Fee Related DE3853345T2 (en)	1987-12-09	1988-12-08	Spread spectrum demodulation device for a spread spectrum transmission system.

Country Status (5)

Country	Link
US (1)	US4918707A (en)
EP (1)	EP0319973B1 (en)
JP (1)	JPH01151843A (en)
AU (1)	AU604450B2 (en)
DE (1)	DE3853345T2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0489794A4 (en) *	1987-01-27	1993-06-09	Advanced Systems Research Pty. Ltd.	Improvements in a spread-spectrum multiplexed transmission system
US4922506A (en) *	1988-01-11	1990-05-01	Sicom Corporation	Compensating for distortion in a communication channel
US5177766A (en) *	1991-06-03	1993-01-05	Spectralink Corporation	Digital clock timing generation in a spread-spectrum digital communication system
US5301206A (en) *	1992-02-07	1994-04-05	Victor Company Of Japan, Inc.	Spread spectrum communication system
JP3229393B2 (en) *	1992-06-17	2001-11-19	株式会社リコー	Spread spectrum communication system
US5461629A (en) *	1992-09-09	1995-10-24	Echelon Corporation	Error correction in a spread spectrum transceiver
JP2745995B2 (en) *	1992-09-10	1998-04-28	日本電気株式会社	Spread spectrum demodulator
DE10024269A1 (en)	2000-05-17	2001-12-20	Bosch Gmbh Robert	Method and device for filtering a signal
KR100687753B1 (en) *	2005-10-19	2007-02-27	한국전자통신연구원	Apparatus and method to generate carrier suppressed-return to zero optical signal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE332201B (en) *	1969-07-02	1971-02-01	Ericsson Telefon Ab L M
US4017798A (en) *	1975-09-08	1977-04-12	Ncr Corporation	Spread spectrum demodulator
US4163944A (en) *	1976-12-22	1979-08-07	Ncr Corporation	Compensation circuit for an electrical signal mixer
US4285060A (en) *	1978-02-28	1981-08-18	Harris Corporation	Spread spectrum code tracking loop
US4538280A (en) *	1983-05-05	1985-08-27	E-Systems, Inc.	Coherent spread spectrum pseudonoise tracking loop
JPS60229545A (en) *	1984-04-27	1985-11-14	Sony Corp	Two-way digital communication system
JPH0693670B2 (en) *	1984-12-29	1994-11-16	京セラ株式会社	Spread spectrum communication system
US4761796A (en) *	1985-01-24	1988-08-02	Itt Defense Communications	High frequency spread spectrum communication system terminal
JPS6397033A (en) *	1986-10-14	1988-04-27	Kenwood Corp	Synchronizing pulse generation circuit for spread spectrum communication system

1987
- 1987-12-09 JP JP62311423A patent/JPH01151843A/en active Pending
1988
- 1988-12-07 AU AU26635/88A patent/AU604450B2/en not_active Ceased
- 1988-12-08 EP EP88120525A patent/EP0319973B1/en not_active Expired - Lifetime
- 1988-12-08 US US07/281,413 patent/US4918707A/en not_active Expired - Lifetime
- 1988-12-08 DE DE3853345T patent/DE3853345T2/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US4918707A (en)	1990-04-17
JPH01151843A (en)	1989-06-14
EP0319973B1 (en)	1995-03-15
AU604450B2 (en)	1990-12-13
EP0319973A3 (en)	1990-10-17
DE3853345T2 (en)	1995-09-21
EP0319973A2 (en)	1989-06-14
AU2663588A (en)	1989-06-15

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Legal Events

Date	Code	Title	Description
1996-04-11	8364	No opposition during term of opposition
2004-10-21	8339	Ceased/non-payment of the annual fee